significantly affected by the Cu loading. This catalytic system also displayed good activity in the synthesis of N-arylsulfonamides from arylboronic acids and tosyl azide. It was highly efficient in gram-scale reactions and could be reused five times. The advantages of low cost, easy preparation, good durability and facile recovery make the fiber catalyst attractive.
通过将Cu(II)固定化为脯
氨酰胺改性的
PANF(
PAN PA-2 F),制备了一系列聚
丙烯腈纤维(
PANF)负载的
铜(II)催化剂,随后将其用于从芳基
硼酸中合成各种N-芳基
咪唑酸和
咪唑。制备的Cu(II)@
PAN PA-2 Fs具有良好的机械强度,FT-IR,XRD,XPS和
SEM表征。其中,CuCl 2 @
PAN PA-2 F表现出优异的催化性能,其活性受到Cu含量的显着影响。该催化体系在合成N中也显示出良好的活性来自芳基
硼酸和
甲苯磺酰基
叠氮化物的-芳基磺酰胺。它在克级反应中非常高效,可以重复使用五次。低成本,易于制备,良好的耐久性和容易回收的优点使纤维催化剂具有吸引力。